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1-3/4 in. x 4-1/2 in. Thick Solid Brass Lock and Door Reinforcer, 2-1/8 in. Single Bore, 2-3/8 in. Backset

  • Constructed from solid brass
  • Can help repair damage done by a forced entry
  • Fits a 1-3/4 in. door with a 2-3/8 in. backset
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Product Details

About This Product

The Defender Security U 9544 Solid Brass Lock and Door Reinforcer assists in preventing forced entry by reinforcing the weak spot of your door. It can be used to reinforce and repair metal, fiberglass and wood doors. Constructed of solid brass, the lock reinforcer plate comes in a brass finish. All the necessary mounting hardware is included for a quick and easy installation. The lock reinforcement plate is pre-punched for mounting. The reinforcer is designed for snug fit on a 1-3/4 inch thick doors. Measuring 3-7/8 inch wide by 4-1/2 inch tall, the reinforcement plate accommodates key-in knob locksets on doors that have 2-1/8 inch bore sizes, with a backset of 2-3/8 inch from the edge of the door. The door reinforcer is recessed for latch installation when door latch area is damaged. Install the door reinforcer and then insert the latch through the recessed area for proper mounting.


  • ADDED SECURITY – Prevent forced entry by reinforcing the weak spot of your door with the non-recessed door lock reinforcer; use to reinforce and repair both metal, fiberglass and wood doors when the latch area has been compromised
  • BUILT TO LAST – Made of solid brass, the door lock reinforcement plate comes in a natural finish to fit over a single bore hole on your door
  • EASY INSTALLATION – All the necessary mounting hardware is included with the lock reinforcement plate for a quick and easy installation; the door reinforcer plate is pre-punched for mounting. Remove the protective film after installation
  • DIMENSIONS – The door lock reinforcement plate is designed for 1-3/4 inch thick doors only that have a 2-1/8 inch bore hole through the door, with a 2-3/8 inch backset from the edge of the door to the center of the bore holes
  • NOTE – Make sure to dry fit the 3-7/8 inch wide by 4-1/2 inch tall with a 0.03 inch thickness door lock reinforcer before permanently installing and refer to the line art drawing and compare with your needs before purchasing
  • All the necessary mounting hardware is included for a quick and easy installation
  • A Phillips head screwdriver is required for installation
  • For further dimensional information, please see the line drawing
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Product Information

Internet # 202639275

Model # U 9544

Additional Resources

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From the Manufacturer


Dimensions: H 6.5 in, W 5.75 in, D 2.25 in


Product Depth (in.)

2.25 in

Product Height (in.)

6.5 in

Product Width (in.)

5.75 in


Color Family


Commercial / Residential

Commercial / Residential


Commercial, Residential

Hardware Color Family


Mounting Hardware Included


Product Weight (lb.)

0.435 lb



Safety & Security Product Type

Lock & Door Reinforcer

Warranty / Certifications

Manufacturer Warranty

Goods are warranted against defects in manufacturing for 1 year. In no case is Prime-Line responsible for user related damage or damage incurred during installation. Warranty is void if products are subjected to abnormal conditions, misapplication or abuse.

Questions & Answers

Q:Does it include hardware??
by|Apr 5, 2016
3 Answers
Answer This Question

A:  Thank you for your inquiry regarding this item from Prime-Line Products. Yes, all fasteners are included to mount this item. Knob and latch are not included. For additional questions regarding this item, or any other product manufactured by Prime-Line Products, please call their toll free number at (877) 649-9740, or contact them by email at info@primeline.net

by|May 3, 2023

    A:  It includes needed screws for securing it in place.

    by|May 5, 2023

      A:  No, this does not include hardware.

      by|May 3, 2023
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